Live signal for JFK to SJU · Updated September 12, 2026
Flights from JFK to San Juan
A current purchasable fare is not published for JFK (JFK) to San Juan (SJU). Dated observations describe historical checks, not a ticket available to buy now.
What have fares historically cost? — JFK (JFK) to San Juan (SJU)
Historical prices in USD for JFK (JFK) to San Juan (SJU) (round-trip) ranged from $227 to $535 across 328 accepted price checks from 2026-06-14 through 2026-09-12, inclusive; source: SERPRadio verified price observations; these are historical observations, not fares available to buy now. The latest accepted price check for JFK (JFK) to San Juan (SJU) was observed on 2026-09-12, based on 1 accepted observation from 2026-09-12 through 2026-09-12; source: SERPRadio verified price observations.
Observed prices by departure day — JFK (JFK) to San Juan (SJU)
For JFK (JFK) to San Juan (SJU), historical round-trip USD median prices by departure weekday were Monday $349 (42 checks); Tuesday $317 (37 checks); Wednesday $332 (43 checks); Thursday $347 (44 checks); Friday $345 (46 checks); Saturday $317 (51 checks); Sunday $381 (65 checks), from 328 accepted price checks observed from 2026-06-14 through 2026-09-12; source: SERPRadio verified price observations. Comparisons describe only qualifying captured departure-day cells, not a recommendation for all flights.
Observed prices by departure month — JFK (JFK) to San Juan (SJU)
For JFK (JFK) to San Juan (SJU), historical round-trip USD median prices by departure month were 2026-07 $357 (60 checks); 2026-08 $327 (101 checks); 2026-09 $326 (111 checks); 2026-10 $362 (56 checks), from 328 accepted price checks observed from 2026-06-14 through 2026-09-12; source: SERPRadio verified price observations. Named-month comparisons do not establish annual seasonality.
How reliable were these flights? — JFK (JFK) to San Juan (SJU)
Across 2378 JFK (JFK) to San Juan (SJU) flights reported from 2025-09-01 through 2026-04-30, 73.4% of departures were on time; source: U.S. Department of Transportation. Across 2378 JFK (JFK) to San Juan (SJU) flights reported from 2025-09-01 through 2026-04-30, 3.3% were canceled; source: U.S. Department of Transportation.
Which departure days were most reliable? — JFK (JFK) to San Juan (SJU)
For JFK (JFK) to San Juan (SJU), Friday and Wednesday were the most reliable departure days among the qualifying weekday groups across 2378 flights reported from 2025-09-01 through 2026-04-30; source: U.S. Department of Transportation. For JFK (JFK) to San Juan (SJU), Sunday and Thursday were the least reliable departure days among the qualifying weekday groups across 2378 flights reported from 2025-09-01 through 2026-04-30; source: U.S. Department of Transportation.
On-time performance put JetBlue Airways at 70.7% and Delta Air Lines at 79.3%, across 2,378 flights in 8 months of U.S. Department of Transportation reporting from September 2025 through April 2026.
Frontier Airlines, which served this route during part of U.S. Department of Transportation reporting from September 2025 through April 2026, posted 71.2% on-time departures.
Traveler questions — JFK (JFK) to San Juan (SJU)
What prices were observed for JFK (JFK) to San Juan (SJU)?
Historical prices in USD for JFK (JFK) to San Juan (SJU) (round-trip) ranged from $227 to $535 across 328 accepted price checks from 2026-06-14 through 2026-09-12, inclusive; source: SERPRadio verified price observations; these are historical observations, not fares available to buy now.
When was the latest verified price check for JFK (JFK) to San Juan (SJU)?
The latest accepted price check for JFK (JFK) to San Juan (SJU) was observed on 2026-09-12, based on 1 accepted observation from 2026-09-12 through 2026-09-12; source: SERPRadio verified price observations.
How did observed prices differ by departure day for JFK (JFK) to San Juan (SJU)?
For JFK (JFK) to San Juan (SJU), historical round-trip USD median prices by departure weekday were Monday $349 (42 checks); Tuesday $317 (37 checks); Wednesday $332 (43 checks); Thursday $347 (44 checks); Friday $345 (46 checks); Saturday $317 (51 checks); Sunday $381 (65 checks), from 328 accepted price checks observed from 2026-06-14 through 2026-09-12; source: SERPRadio verified price observations. Comparisons describe only qualifying captured departure-day cells, not a recommendation for all flights.
How did observed prices differ by departure month for JFK (JFK) to San Juan (SJU)?
For JFK (JFK) to San Juan (SJU), historical round-trip USD median prices by departure month were 2026-07 $357 (60 checks); 2026-08 $327 (101 checks); 2026-09 $326 (111 checks); 2026-10 $362 (56 checks), from 328 accepted price checks observed from 2026-06-14 through 2026-09-12; source: SERPRadio verified price observations. Named-month comparisons do not establish annual seasonality.
What operational reliability is supported for JFK (JFK) to San Juan (SJU)?
Across 2378 JFK (JFK) to San Juan (SJU) flights reported from 2025-09-01 through 2026-04-30, 73.4% of departures were on time; source: U.S. Department of Transportation.
Which departure days were most reliable for JFK (JFK) to San Juan (SJU)?
For JFK (JFK) to San Juan (SJU), Friday and Wednesday were the most reliable departure days among the qualifying weekday groups across 2378 flights reported from 2025-09-01 through 2026-04-30; source: U.S. Department of Transportation.
Which departure days were least reliable for JFK (JFK) to San Juan (SJU)?
For JFK (JFK) to San Juan (SJU), Sunday and Thursday were the least reliable departure days among the qualifying weekday groups across 2378 flights reported from 2025-09-01 through 2026-04-30; source: U.S. Department of Transportation.
What cancellation rate was observed for JFK (JFK) to San Juan (SJU)?
Across 2378 JFK (JFK) to San Juan (SJU) flights reported from 2025-09-01 through 2026-04-30, 3.3% were canceled; source: U.S. Department of Transportation.
What is not claimed — JFK (JFK) to San Juan (SJU)
Some guidance for JFK (JFK) to San Juan (SJU) is not available because its evidence dates or support have not been verified.
Sources and methodology — JFK (JFK) to San Juan (SJU)
- SERPRadio verified price observations; 2026-06-14–2026-09-12; 328 price checks.
- SERPRadio verified price observations; 2026-09-12–2026-09-12; 1 price checks.
- U.S. Department of Transportation; 2025-09-01–2026-04-30; 2378 flights.
- U.S. Department of Transportation; 2025-09-01–2026-04-30; 2378 flights.
- U.S. Department of Transportation; 2025-09-01–2026-04-30; 2378 flights.
- U.S. Department of Transportation; 2025-09-01–2026-04-30; 2378 flights.
- SERPRadio verified price observations; 2026-06-14–2026-09-12; 328 price checks.
- SERPRadio verified price observations; 2026-06-14–2026-09-12; 328 price checks.
Who: SERP Radio route dossier system
How: Route pages combine accepted fare observations, timing guidance, carrier mix, and route-level context from current NYC corridor feeds.
Why: This page exists to explain current fare behavior on one route and point to the next timing or airport surface when needed.
Limits: If route coverage is thin, the page falls back to limited route guidance instead of publishing weak pricing claims.
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